Massage roller



FIG. 1 is a top perspective view of a massage roller;

FIG. 2 is a front elevation view of the massage roller;

FIG. 3 is a bottom plan view of the massage roller; and,

FIG. 4 is an end elevation view of the massage roller.

The broken lines shown in the drawings are for illustrative purposesonly and form no part of the claimed design.

CLAIM The ornamental design for a massage roller, as shown anddescribed.